water of hydration

2 definitions found

water of hydration - Collaborative International Dictionary of English v.0.48 :

  Hydration \Hy*dra"tion\, n. (Chem.)
     The act of becoming, or state of being, a hydrate.
     [1913 Webster]
  
     Water of hydration (Chem.), water chemically combined with
        some substance to form a hydrate; -- distinguished from
        water of crystallization.
        [1913 Webster]

water of hydration - WordNet (r) 2.1 (2005) :

  water of hydration
      n 1: the water present in hydrated compounds [syn: water of crystallization
           , water of crystallisation, water of hydration
           ]